The guy used to have trouble writing sentences in a reasonable amount of time. So, we started this thing where he can watch an episode of Avatar: The Last Airbender if he writes a three-sentence entry in his journal in ten minutes.
Now, this is fairly easy for him.
There’s a practice in games in which once a player gets good at a thing, they get reduced rewards for that thing. It feels like a ripoff sometimes, and definitely feels that way in work situations.
However, not changing things doesn’t really work over a large time scale, so some inflation is going to happen.